4GMAT - GMAT Online Practice Test
topic wise list of questions  Topicwise List of Questions
GMAT Prep
GMAT Class @ Chennai, Mumbai, Bangalore
GMAT Classes in India Intensive classes for GMAT in Madras, Bombay and Bangalore in India. Weekend & Weekday classes. Includes study material and tests. Tutors include 98%ilers in GMAT & ISB / IIM Graduates.
gmat math
GMAT Prep
Other useful links
Testimonials
GMAT Prep Freebies
Contact 4GMAT
Chennai : 95000 48484
Mumbai : 80970 48484
Bangalore : 91419 48484
Follow 4GMAT on Facebook    Follow 4GMAT on Twitter    GMAT Prep Blogs by 4GMAT    GMAT Prep Videos by 4GMAT     Google+   Follow 4GMAT on LinkedIn
gmat practice test
You are here: Home » GMAT Test Prep Questions » Algebra : Linear Equation » Question 1

GMAT Math Practice - Linear Equation Word Problems

The question given below is a Math problem in Algebra and requires framing a couple of linear equations and solving the equations.

Question 1

A poultry farm has only chickens and pigs. When the manager of the poultry counted the heads of the stock in the farm, the number totaled up to 200. However, when the number of legs was counted, the number totaled up to 540. How many chickens were there in the farm?
  1. 70
  2. 120
  3. 60
  4. 130
  5. 80
The correct choice is (D) and the correct answer is 130.

Explanatory Answer

Let there by 'x' chickens and 'y' pigs.
Therefore, x + y = 200 --- (1)

Each chicken has 2 legs and each pig has 4 legs
Therefore, 2x + 4y = 540 --- (2)

Solving equations (1) and (2), we get x = 130 and y = 70.

There were 130 chickens and 70 pigs in the farm.

 


Add to del.icio.us Add to del.icio.us Stumble It Stumble It digg this digg this

Copyright 2004-13 4GMAT.COM
Test Catalyst (India) Private Limited
All rights reserved
GMAT™ and GMAC™ are registered trademarks of the Graduate Management Admission Council™. The Graduate Management Admission Council™ does not endorse, nor is it affiliated in any way with the owner or any content of this web site.